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The last ____ occurred about 26,500-11,700 years ago.
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Cenozoic
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____ were long-necked, quadrupedal, herbivorous dinosaurs.
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Earth
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____ were marine reptiles, not dinosaurs.
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Ice Age
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____ were Ice Age relatives of modern elephants.
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Mammals
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The ____ preceded the Paleozoic, Mesozoic, and Cenozoic eras.
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Mammoths
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____ formed about 4.5 billion years ago.
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Plesiosaurs
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The ____ era began after a huge asteroid hit Earth 66 mya.
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Precambrian
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The Cenozoic era (66 mya–present) is the "Age of ____".
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Sauropods
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